<?php

namespace modules\users\views\register;

use Listings;
use Users;
use Redirect;
use InternalMail;
use modules\users\views\AuthForm;

/**
 * Auth > Register > Activate
 * @copyright Tamaranga
 */
class Activate extends AuthForm
{
    public function data()
    {
        if ($this->request->user()) {
            return Users::redirectToAccountSettings();
        }

        # Activation key
        $key = $this->request->get('key', TYPE_NOTAGS);

        # InternalMail: new message + not activated receiver
        $isMessageRedirect = false;
        $messageKey = $this->request->get('msg', TYPE_NOTAGS);
        if (! empty($messageKey)) {
            list($authorID, $interlocutorID) = explode('-', (strpos($messageKey, '-') !== false ? $messageKey : '0-0-0'), 3);
            $isMessageRedirect = ($authorID && $interlocutorID);
        }

        $isAutoRegistration = $isMessageRedirect;

        $userData = Users::model()->userDataByFilter([
            'activated'    => 0,
            'blocked'      => 0,
            ['activate_expire > :expire', ':expire' => $this->db->now()],
            'activate_key' => $key,
        ], ['user_id', 'email', 'name']);

        # Failed to find user account by {key}:
        # 1) Activation key has expired or is invalid
        # 2) User acount is already activated or was blocked
        if (empty($userData)) {
            if ($isMessageRedirect) {
                return $this->authMessage(
                    _t('users', 'View messages'),
                    _t('users', 'You need to <a [link_auth]>Sign In</a> to view messages.', [
                        'link_auth' => ' href="' . $this->loginUrl() . '"'
                    ])
                );
            }
            return $this->authMessage(
                _t('users', 'Account activation'),
                _t('users', 'The activation key has expired.')
            );
        }
        $userID = intval($userData['user_id']);

        # Activate user account
        $activate = [
            # Activation link may only be sent on email, so verify email
            'verifyEmail' => true,
            # Generate new password (automatic passwordless registration only)
            'password' => ($isAutoRegistration ? $this->security->generatePassword() : null)
        ];
        if (Users::userActivate($userID, $activate)) {
            if ($isAutoRegistration) {
                # Send email notification - registation finished
                Users::sendAutoRegistrationNotification($userID, $userData['name'], $userData['email'], $activate['password']);
            }
        }

        # Authenticate
        if (Users::authById($userID) === true) {
            # Save favorite listings to database
            Listings::favorites()->onUserLogin($userID); # todo: listen @see \modules\users\events\Login
            # Redirect to messages
            if ($isMessageRedirect) {
                $interlocutorData = Users::model()->userData($interlocutorID, ['user_id', 'login']);
                if (! empty($interlocutorData)) {
                    return Redirect::to(InternalMail::url('account.messages', ['i' => $interlocutorData['login']]));
                }
            }
        }

        # Redirect to registration "Finished" step
        return Redirect::to($this->registrationUrl('finished'));
    }
}